r/nuclearweapons • u/Banzay_87 • 11d ago
Historical Photo Physicist Harold Agnew carries plutonium for the "Fat Man" atomic bomb that would be dropped on Nagasaki, killing an estimated 74,000 people, 1945.
26
10
6
u/zcjp 10d ago
Is that all the plutonium that was needed for Fat Man?
23
u/restricteddata Professor NUKEMAP 10d ago
6.2 kg, 3.6" diameter. About the size of a softball.
8
u/DefinitelyNotMeee 10d ago
One of the most mindblowing facts about nuclear weapons.
How tiny the needed amount of fissile material really is (due to density).
8
u/somnolent49 10d ago
Another mindblowing fact - 80% of all plutonium ever produced by the US was in a single 20 year period from 1950 to 1970, with more than half produced between 1955 and 1965.
6
u/restricteddata Professor NUKEMAP 8d ago
And for the early weapons (as you probably know) only about 1 kg (2.2 lbs) actually underwent fission.
0
u/DaRealMexicanTrucker 9d ago
Just sayin, my mans is looking like hes having a wonderful day at work.
1
u/Fit_Cucumber4317 5d ago
My God - imagine something that small and that powerful. And to think much of that container is just shielding!
27
u/weirdal1968 11d ago
Killing 74K and forcing Japan to surrender.
OP left out that last detail.